refactor(ops/dns): use drvTargets for meta.targets population r/2283

Since we have a dedicated util for this, we may as well use it
to reduce code duplication.

Change-Id: Ie52647be8c786d0b6a4dceb2fa6778b94625fafc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2604
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>

1 files changed, 8 insertions, 7 deletions

diff --git a/ops/dns/default.nix b/ops/dns/default.nix
index 58af7aa6f2..be78702809 100644
--- a/ops/dns/default.nix
+++ b/ops/dns/default.nix
@@ -1,15 +1,16 @@
 # Performs simple (local-only) validity checks on DNS zones.
-{ pkgs, ... }:
+{ depot, pkgs, ... }:
 
 let
+  inherit (depot.nix.utils)
+    drvTargets
+    ;
+
   checkZone = zone: file: pkgs.runCommandNoCC "${zone}-check" {} ''
     ${pkgs.bind}/bin/named-checkzone -i local ${zone} ${file} | tee $out
   '';
 
-  zones = {
-    tvl-fyi = checkZone "tvl.fyi" ./tvl.fyi.zone;
-    tvl-su = checkZone "tvl.su" ./tvl.su.zone;
-  };
-in zones // {
-  meta.targets = builtins.attrNames zones;
+in drvTargets {
+  tvl-fyi = checkZone "tvl.fyi" ./tvl.fyi.zone;
+  tvl-su = checkZone "tvl.su" ./tvl.su.zone;
 }